最近在項目中又遇到一個小問題,經過HttpURLConnection來傳遞漢字時,服務端獲取漢字參數時都爲亂碼,如下分別爲在servlet或action中獲取URL中的漢字解決辦法:html
1. 如下代碼爲 經過HttpURLConnection鏈接來傳遞參數,其中,對待漢字的操做須要先進行編碼的操做,以後在服務端進行解碼操做便可。java
- public static void main(String[] args) throws UnsupportedEncodingException {
-
- // String url = "http://61.154.14.46:8080/exter.shtml?serviceType=1011";
- String name = java.net.URLEncoder.encode("行子愛上大叔的","UTF-8");
- String url = "http://localhost:8081/exter.shtml?serviceType=1023&guid=11&mobile=13696900475&content=123" + name;
- // String url = "http://localhost:8080/webtest/servlet/URLTest?name=這個是測試用的" + name;
- // String url = "http://localhost:8081/exter.shtml?serviceType=1022&menuId=4481&mobile=15806092760&text_data=linlinlin&imgName=testa.jpg";
- // getReturnData1(url);
- sendPost(url,null);
- }
public static void main(String[] args) throws UnsupportedEncodingException { // String url = "http://61.154.14.46:8080/exter.shtml?serviceType=1011"; String name = java.net.URLEncoder.encode("行子愛上大叔的","UTF-8"); String url = "http://localhost:8081/exter.shtml?serviceType=1023&guid=11&mobile=13696900475&content=123" + name; // String url = "http://localhost:8080/webtest/servlet/URLTest?name=這個是測試用的" + name; // String url = "http://localhost:8081/exter.shtml?serviceType=1022&menuId=4481&mobile=15806092760&text_data=linlinlin&imgName=testa.jpg"; // getReturnData1(url); sendPost(url,null); }
- /**
- * 經過HTTP協議以POST形式發送指定文件至指定url
- * @param url
- * @throws IOException
- */
- public static void sendPost(String url,InputStream in) {
-
- HttpURLConnection conn = null;
- OutputStreamWriter osw = null;
- try {
- File file = new File("D:/test2.jpg");
- if(!file.exists()) {
- try {
- file.createNewFile();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- URL url1 = new URL(url);
- conn = (HttpURLConnection)url1.openConnection();
- conn.setReadTimeout(10000); // 緩存的最長時間
- conn.setDoInput(true);// 容許輸入
- conn.setDoOutput(true);// 容許輸出
- conn.setUseCaches(false); // 不容許使用緩存
- conn.setRequestMethod("POST");
- conn.setRequestProperty("Charsert", "UTF-8");
- //conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + java.util.UUID.randomUUID().toString());
- //須要傳遞流時,必定要添加的參數,並且ACTION中經過request.getInputStream獲取流的狀況下,也必須添加該參數
- conn.setRequestProperty("content-type", "text/html");
- OutputStream o = conn.getOutputStream();
- BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
- int BUFFER_SIZE = 1024;
- byte[] buf = new byte[BUFFER_SIZE];
- int size = 0;
- try {
- while ((size = bis.read(buf)) != -1)
- o.write(buf, 0, size);
- } catch (IOException e) {
- e.printStackTrace();
- }
- finally {
- try {
- bis.close();
- o.close();
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
-
- if (conn.getResponseCode() != HttpURLConnection.HTTP_OK)
- System.out.println( "connect failed!");
- } catch (IOException e) {
- e.printStackTrace();
- }
- finally
- {
- if (osw != null)
- try {
- osw.close() ;
- } catch (IOException e1) {
- e1.printStackTrace();
- }
-
- if (conn != null)
- conn.disconnect() ;
- }
- }
/** * 經過HTTP協議以POST形式發送指定文件至指定url * @param url * @throws IOException */ public static void sendPost(String url,InputStream in) { HttpURLConnection conn = null; OutputStreamWriter osw = null; try { File file = new File("D:/test2.jpg"); if(!file.exists()) { try { file.createNewFile(); } catch (IOException e) { e.printStackTrace(); } } URL url1 = new URL(url); conn = (HttpURLConnection)url1.openConnection(); conn.setReadTimeout(10000); // 緩存的最長時間 conn.setDoInput(true);// 容許輸入 conn.setDoOutput(true);// 容許輸出 conn.setUseCaches(false); // 不容許使用緩存 conn.setRequestMethod("POST"); conn.setRequestProperty("Charsert", "UTF-8"); //conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + java.util.UUID.randomUUID().toString()); //須要傳遞流時,必定要添加的參數,並且ACTION中經過request.getInputStream獲取流的狀況下,也必須添加該參數 conn.setRequestProperty("content-type", "text/html"); OutputStream o = conn.getOutputStream(); BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file)); int BUFFER_SIZE = 1024; byte[] buf = new byte[BUFFER_SIZE]; int size = 0; try { while ((size = bis.read(buf)) != -1) o.write(buf, 0, size); } catch (IOException e) { e.printStackTrace(); } finally { try { bis.close(); o.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) System.out.println( "connect failed!"); } catch (IOException e) { e.printStackTrace(); } finally { if (osw != null) try { osw.close() ; } catch (IOException e1) { e1.printStackTrace(); } if (conn != null) conn.disconnect() ; } }
2. servlet端的解析漢字操做: 直接進行編碼的轉換便可顯示爲漢字
- public void doPost(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
-
- // response.setContentType("text/html");
- request.setCharacterEncoding("UTF-8");
- String s = request.getParameter("name");
- System.out.println("s22 is " + new String(s.getBytes("iso-8859-1"),"UTF-8"));
-
- // InputStream in = request.getInputStream();
- // if(in != null) {
- // System.out.println("流不是空的。");
- // this.writeInputStreamToFile(in);
- // System.out.println("server time is " + new Date());
- // } else {
- // System.out.println("流是空的。");
- // }
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // response.setContentType("text/html"); request.setCharacterEncoding("UTF-8"); String s = request.getParameter("name"); System.out.println("s22 is " + new String(s.getBytes("iso-8859-1"),"UTF-8")); // InputStream in = request.getInputStream(); // if(in != null) { // System.out.println("流不是空的。"); // this.writeInputStreamToFile(in); // System.out.println("server time is " + new Date()); // } else { // System.out.println("流是空的。"); // }
3. 在action中解析漢字的操做: 在action中直接設置下編碼格式,直接獲取就可。
request.setCharacterEncoding("utf-8");web
System.out.println(form.getContent());緩存